refactor(Core/AI): Some more refactoring prep for Comat Threat system… (#15026)

Co-authored-by: Treeston <14020072+Treeston@users.noreply.github.com>

src/server/game/AI/ScriptedAI/ScriptedCreature.h

@@ -278,9 +278,9 @@ struct ScriptedAI : public CreatureAI
     void Reset() override {}
 
     //Called at creature aggro either by MoveInLOS or Attack Start
-    void EnterCombat(Unit* /*victim*/) override {}
+    void JustEngagedWith(Unit* /*who*/) override {}
 
-    // Called before EnterCombat even before the creature is in combat.
+    // Called before JustEngagedWith even before the creature is in combat.
     void AttackStart(Unit* /*target*/) override;
 
     // *************
@@ -455,13 +455,13 @@ public:
     virtual void ScheduleTasks() { }
 
     void Reset() override { _Reset(); }
-    void EnterCombat(Unit* /*who*/) override { _EnterCombat(); }
+    void JustEngagedWith(Unit* /*who*/) override { _JustEngagedWith(); }
     void JustDied(Unit* /*killer*/) override { _JustDied(); }
     void JustReachedHome() override { _JustReachedHome(); }
 
 protected:
     void _Reset();
-    void _EnterCombat();
+    void _JustEngagedWith();
     void _JustDied();
     void _JustReachedHome() { me->setActive(false); }
 
@@ -493,12 +493,12 @@ public:
     virtual void ExecuteEvent(uint32 /*eventId*/) { }
 
     void Reset() override { _Reset(); }
-    void EnterCombat(Unit* /*who*/) override { _EnterCombat(); }
+    void JustEngagedWith(Unit* /*who*/) override { _JustEngagedWith(); }
     void JustDied(Unit* /*killer*/) override { _JustDied(); }
 
 protected:
     void _Reset();
-    void _EnterCombat();
+    void _JustEngagedWith();
     void _JustDied();
 
     EventMap events;